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Document ID (ISN)53182
CIS number 90-307
ISSN - Serial title 0014-0139 - Ergonomics
Year 1989
Convention or series no.
Author(s) Gr÷nqvist R., Roine J., Jńrvinen E., Korhonen E.
Title An apparatus and a method for determining the slip resistance of shoes and floors by simulation of human foot motions
Bibliographic information Aug. 1989, Vol.32, No.8, p.979-995. Illus. Bibl.
Abstract An apparatus to measure the coefficient of kinetic friction between the shoe sole and the underfoot surface was constructed, and a method including criteria to evaluate the risk of slipping during waling was developed. The apparatus is a prototype stationary step simulator capable of simulating the movements of a human foot and the forces applied to the underfoot surface during an actual slip, and the drainage capability of the contact surface between the shoe sole and the flooring when different lubricants or contaminants are used. The apparatus consists of a movable artificial foot controlled by a computer with the aid of three hydraulic cylinders. The frictional force, the normal force and their ratio are measured with a two-way force platform when the foot slides along its surface. Two separate gait patterns, heel-slide and sole-slide gait pattern, are used for the evaluations. The method classifies studied shoe, lubricant and underfoot surface combinations into five slip resistance classes according to the measured heel-slide gait pattern. The slip resistance assessments are specified by other complementary safety criteria. The reliability of the developed measurement method was assessed in an international comparison test. The method seems to be valid and the slip resistance measurements repeatable.
Descriptors (primary) slipperiness testing; safety shoes
Descriptors (secondary) description of technique; description of equipment
Document type D - Periodical articles
Subject(s) Personal protection
Broad subject area(s) Mechanical hazards, transport
Browse category(ies) Foot and leg protection